Lenovo ThinkCentre M92z Hardware Maintenance Manual - ThinkCentre M92z (type 3 - Page 96

Replacing the converter board, What to do next

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Figure 21. Installing the optical drive What to do next: • To work with another piece of hardware, go to the appropriate section. • To complete the installation or replacement, go to "Completing the parts replacement" on page 127. Replacing the converter board Attention: Do not open your computer or attempt any repair before reading and understanding "Important Safety Information" on page 1. This section provides instructions on how to replace the converter board. To replace the converter board, do the following: 1. Remove all media from the drives and turn off all attached devices and the computer. Then, disconnect all power cords from electrical outlets and disconnect all cables that are connected to the computer. 2. Place a soft, clean towel or cloth on the desk or surface. Hold the sides of your computer and gently lay it down so that the screen is against the surface and the cover is facing up. 3. Remove the computer cover. See "Removing the computer cover" on page 83. 4. Remove the optical drive. See "Replacing the optical drive" on page 90. 5. Locate the converter board. See "Locating major FRUs and CRUs (for models with the 20-inch display)" on page 73 or "Locating major FRUs and CRUs (for models with the 23-inch display)" on page 76. 6. Remove the three screws 1 that secure the converter board to the chassis and disconnect the cables. Then, lift the converter board off the chassis. 92 ThinkCentre Hardware Maintenance Manual

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Figure 21. Installing the optical drive
What to do next:
•
To work with another piece of hardware, go to the appropriate section.
•
To complete the installation or replacement, go to “Completing the parts replacement” on page 127.
Replacing the converter board
Attention:
Do not open your computer or attempt any repair before reading and understanding “Important Safety Information”
on page 1.
This section provides instructions on how to replace the converter board.
To replace the converter board, do the following:
1. Remove all media from the drives and turn off all attached devices and the computer. Then, disconnect
all power cords from electrical outlets and disconnect all cables that are connected to the computer.
2. Place a soft, clean towel or cloth on the desk or surface. Hold the sides of your computer and gently lay
it down so that the screen is against the surface and the cover is facing up.
3. Remove the computer cover. See “Removing the computer cover” on page 83.
4. Remove the optical drive. See “Replacing the optical drive” on page 90.
5. Locate the converter board. See “Locating major FRUs and CRUs (for models with the 20-inch display)”
on page 73 or “Locating major FRUs and CRUs (for models with the 23-inch display)” on page 76.
6. Remove the three screws
1
that secure the converter board to the chassis and disconnect the cables.
Then, lift the converter board off the chassis.
92
ThinkCentre Hardware Maintenance Manual